Polymer bitumen modifiers: butadiene-styrene thermoplastic elastomer and syndiotactic polybutadiene

The composition and properties of bitumen materials are in the focus of research.The expansion of the temperature range of such binders is one of the main tasks for several industries: oil refining, road and polymer. The article studies constantly expanding set of synthetic materials, capable of significantly correcting the properties of bitumen binders. Of course, the reference polymer for these purposes today is styrene-butadiene thermoplastic elastomer (BSTEP, SBS-polymer). The paper cobsiders syndiotactic 1,2-polybutadiene (1,2-SPB) a comparative alternative for the modification of petroleum road viscous bitumen. It investigates influence of polymer components on properties of bitumen binders. It also evaluates expediency of using modifying agents of various compositions, as well as their mixtures.